Chair base



11w. FOOTE- CHAIR BASE May 5, 1925.

OEi'ginEI Filed Dec. 23, 191 8 2 Sheets-Sheet l lbw/won Th rposW, FooTe,

his ATTORNEY May 5, 1925. R.,. 16,064

T. W. FOOTE CHAIR BASE OJFiginAI Filed Dec. 25, 191;} ZShpets-Sheet 2 l/WE/VTDH Thomas W. FooT his ATTORNEY Reissued May 5,19 25. l

v ,UNITED is-TA Es THO-MAS room, or CLEVELAND, 0111c.

Original No. 1,303,646, dated of. Cleveland, county of Cuyahoga, and

l on

State of Ohio, have invented a new and useful Improvement-in Chair Bases, ofwhich the following is a specification.

The present invention relates to bases of' the type used with revolving chairs, stools, costumers, and the like. The object of the invention is the provision of 'a base in which the legs are interconnected so as to make a neat, secure and easily assembled joint. Other objects are the provision of blocks which fit between the legs and engage therevwithto make the joint more secure and these blocks also conceal the joints between the legs so as to give a finished appearance to the completed article. To theaccomplishment of the foregoing and related ends, saidinvention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawings and the following description set forth in detail certain mech anism embodying the invention, such disclosed means constituting, however, but one of the various mechanical forms in which the principle of'the invention may be used.

' In said annexed drawings t Figure 1, is a side elevation of a chair base embodying one form of my invention; Fig. 2, is a top plan view with the'upperplate removed, showing the relation of the various parts; Fig. 3 is a perspective view of the end of one of the legs; Fig. 4 is a side elevation of the end shown in Fig.3; Fig. 5 is a j (not-shown).

section on the. line 55,' Fig. 2; Fig. 6 is a perspective view of one of the blocks; Figs.

7 and 8 are aside elevation and a top view respectively of the block shown in Fi 6; and Fig. 9 isa-sectionthrough one o the plates. j I g As shown in Fig. 1, the base 1 is of the usual type, havingfour legs A, B, C and I) provided with the usual casters 3, andhaving topand bottom plates 4 which serve as bearings for the spindle of the chair seat These plates as shown in Fig. 9, have short sleeves 2which serve as bush- They are also pro.-

jt screws to fasten them to the legs.

The constructionand joining of the inner ends of the-legs to make a secure and satis- May 13,1919, Serial No. 267,888, filed December 28, reissue filed May, 26, 1921. Serial No. 472,892.

later set forth.

CHAIR BASE.

1918. Application. for

inner end of each leg with a vertical series of tenons having mortises, therebetween, the said tenons being engaged by tenons formed on locking blocks which are placed between each two adjacent legs- As shown in Fig. 3, the inner 'end 5j1of one of the legs is shown. In this particular embodiment of theinvention the inner end of the leg-is formedwith a series of staggered tenons.6 andi7 ending in blunt or cut off ;ends 8. Each tenon 6 has its outer face 9 in the; plane of the side of the leg while its inner face 10 is formed at an angle of 30 thereto. The opposite tenons 7 are similarly formed with faces :-11 in the plane of the side and faces 12 at an angle of 30? thereto. Thus the end has a forked appearance, the te nons alternating first on one side and then the other, as is clearlyshown in Figs. 3 and 4.

The ends 8 of two opposite legs are in the same vertical plane, while the tenons of'each two adjacent legs interengage over a por The legs when thus asj 7 Thetwo adjacent legs A and B have their tenons, 6 and 7 interengaging over the area a, b, c, andd, leaving-the areas a, b, e and r b, c, f, disenga ed for the purpose to be ach adjacent pair ofjlegs is thus in engagement'and the four legs are locked tightly together. l

a The blocks 18", .18, .18 and 18 also factory joint are the points of particular interest in the present instance and in accordance with my invention I provide the have forked ends with alternating triangular tenons 19 and 20. These blocks have each a'base portion21, the inner facs-22iofthe tenons being continuatio'ns of the sides 23of this base portion ,.while the outer faces 24 are set at an angle to the sides .23. As seen, thesejtenons are triangular inshape and alternate as do the ten'ons on the ends of the legs. The faces 22 are cut at an angle of 45 to the base line, while the outer faces 24 are at an angle of 75? to the base ofthe blOCkm, I

\ The blocks fit in between adjacent legs,

. the tenons of the blocks fitting into the dis--- enga'gedportionsof the tenons of the legs as will'be' readily seen from Figs. 2 and 5.

' Thus in Fig. 2, the block1l8 is engaged with the two legs A and B. over the areas a, e, b

and b, 0, f, respectively, thus making a'solid 'oint and interleeki the 1 togetherso ihatfli resist eteryfliretion except outwardly along their median lines.

It will be seen that the base poition m, n, e, f extends beyond the cuts in the legs and thus conceals the joint. As the block is moothevemhe .fa'cese n and m, f, it makes a close fit with the smooth faces of the legs and "a neat satisfactory joint results.

The rifle bf the an "les mentioned allows the .bloektoentireiy 11 the spaces between the on the legs-so that a solid base resuks assnown in section in Fig. 5. As stated before, at the eenter of the base a hmganei epenieg' ie is ts; which is bored ant to fimn the hole 1 (shown in dotted lilies Rigs-2) for the seat spindle.

It wiliiie iinder'stood that the art's may or ine my .beglued. iiefore ass t ling and creed --intep1e@e, the l gs and blocks tangen -st 'a'sto securea tight fit and glue,

'usd, serving tea-1am makin a sejoifit; P

- The-stigma preferably niachih'e "cut to aoiira'oy hii'd as the. cuts *or angled fsi'ds' of hath-the tenets-0 the legs and.

blfi'ek's are bVfiifl-hy the base portion of wanders; slight irregularities in Jcutti'n'g esteemed ana '11 satisfactory j dint -ob- *jthini- The assembly tithe members is momma. The resultihg chairbase is thon does net tome apartor become 'ldosewfterhse the plates are screwed er "otherwise fastened to the legs, which adds to thest ren'gther the finished Other meats er applying-the prim n of my invention (whi'eh c'onsists in the i 11- {teien agenieht of the leg and blocktenons) je eniployed instead of "the one explained, made as regards the meehaaism herein disclosed, providing the means stated-by any or "the to lowing claims the equivalent or 's'aeh. stated Trieans be emplo ed. V 1

7 "1.'A cha'iiybase, comprising legs havin aflpiiirality of oppositely disposed-whens on their ends *and adaptd to interen'gage over paras-as of the areasfo f said-tenons, aria a series of blocks -fornied with sunilarly disposed teno'n's', adapted 'tO- interenrg withthe tenon'swon said legs to form a 2 'oint. I

ehair base, comprising legs haxii'ng a plurality of oppcisitely di'spo'sed tenons on their inner ends and adapted to interen'gage *Oi'r portions "of the areas of said tenons, and h series'of blocks formed with siniila'rly urspo'sed tendn's, said -bloeks being adapted to fit-"sntrg'1y between ad jaent legs and 'to v interengage with the enen aged' portions bf 3. chair *base, conip'rising :legs havin a plurality of 'oppositely disposed staggered tenbn's on their inner ends, the tehons of two. adjacent legsbeing adapted to interengage over portions of theirareas, and a series of locking blocks provided with similarly disposed staggered tenons, said blocks being adapted to fit snugly between adjacent legs and the tenons'on saidblocks :being adapted to .inter'engage with the unengaged portions of the tenons on the legs.

4. A chair base-,=coniprising legs having a plurality of oppositely s'tag ered' tenbns on their inner fiends, t re tel-ions bl two adjacent legs b'eiiig adapted to interen'gag'e, over portions of their areas, and a series of locking blocks provided with similarly disposed triangula'r shaped 'staggered tenons, said bloc-ks fitting snugly between adjacent legs and having -their tenor-1s intemngaged with the iin'en g'aged portiensef the tenon's on thelegs to forma solid joint.

5. A; chair base, on'ipr-i'sing legs having 'a plurality of ofpposit'ely disposed staggered tenons on their inner ends-,theteiron s of two adjacent legs being adapted to inter-engage ever portions of their areas, anda seriesof locking blocks each having a base portion aiid a pluralit of similarly disposed triangular shaped ten'ons arranged in staggered relation, the block's being adapted to fit snugly between adjacent legs and having their tehons interenga-ging with the unenaged portions of thetenons on the-le to Form a solid joint, the base lp'orti'ons fo the bloeksheing adapted to Conceal the juncture of the *teno'n's on the legs and h locks.

6. A chair base, comprising legs having forired inn'er ends provided with a plurality of "tenons disposed alternately 'on the two prongs of each -foi k, the adjacent legs being adapted to have their adjacent rows of ten- -I"ons intereirgagi'rrg over portions of their areas, and a series of looking blocks also :protitled with two series of alternately disposed triangular shaped unions, the blocks being adapted to fitsnugly between -adjacentlegs and to have theft tenons interengagingwith the iurengaged port-ions of the teno'ns on the legs to *form a solid joint.

7. A chair base, 'eomprisinglegs' having forked l' fill'ell ends rovided with 'a plurality of "tenons dispo ialt'erna'te'ly on the two prongs of each fork, the adjacent legs being adapted to have their adjacent rows of ten.-

" OllS :inteingaging over port-ions of :their areas, and :a series :of locking blocks each havinga base :portion and two. series of alternat'ely disposed triangular shaped tenons, the blocks being adaptedto fit snugly :between adjacent legs and "to have their'tenons interengaging with the unenga'gedrzportions of the tenons, on the legs to form a :solid joint, said base portions ofrsaid blocks being .aadaiptd to coneea llgthe interengagement of .said tenons of sai legs .andb'locks 8. A chair base, comprising legs-having a plurality of tenons arranged in vertical series on their inner ends, and blocks having tenons arranged in vertical series adapted to engage with the tenons on the legs.

9. A chair base, comprising legs each having a vertical series of tenons and intervening mortises at its inner end, and locking blocks each having a verticalseries of tenons and intervening mortises on one face thereof, the blocks being adapted for insert-ion between adjacent legs and the tenons on the blocks being designed to enter the 'Inortises' between the tenons on the legs and to engage with said last mentioned tenons.

10. A chair base, comp-rising a plurality of legs arranged substantially at right angles toeaeh other and provided with spaced tenons on their inner ends, and lockin blocks insertible between adjacent legs and having tenons engageable withthe tenons of the legs. a f

' 11. A chair or other base, comprising a series of legs provided at their inner ends with inwardly disposed tenons, and connecting filler-blocks arranged between said legs,'said blocks having their inner faces provided with a series of tenons spaced apart to form intermediate mortise-s, said tenons being staggeredwith relation to the tenons of the legs. v

Signedby me this 3rd day of May 1921.

THOMAS W. FOOTE. 

